@Paul_KD7HB I just need another help.
Actually I am using a 12V Solenoid Valve. Its image is as follows:
I just want to transfer water from other tank using this valve. In my project I am using 02 water tanks (each of 10 Litre). You can think each one of them as water dispenser. At the end of one dispenser I have connected this valve so that whenever the first dispenser is about to fill then the arduino will open this valve and then the second water tank will be filled.
But I am having a lot of problem in doing so. When I apply a potential of 12V to the solenoid then it barely let the water go through it. At the inlet the pressure of water is very high but at the outlet the water flow is almost zero.
Circuit diagram is as follows:
Is there anything I am doing wrong ?? Can you please suggest a solenoid valve which just opens with a bare minium pressure so that when I open the valve, the water with the lowest pressure goes through it